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Steroid Potency Classification — SCE Dermatology MCQ

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EasyInflammatory DermatosesSteroid Potency ClassificationSCE Dermatology

A 50-year-old man with eczema is applying topical corticosteroid. His pharmacist asks about the potency classification of Mometasone furoate 0.1%. What potency class is it?

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Correct answer: C — Potent — Mometasone furoate 0.1% is classified as a potent topical corticosteroid in the UK classification

UK topical corticosteroid potency classification: Mild — Hydrocortisone 0.5-1%, Hydrocortisone acetate 1%; Moderate — Clobetasone butyrate 0.05% (Eumovate), Betamethasone valerate 0.025%; Potent — Betamethasone valerate 0.1% (Betnovate), Mometasone furoate 0.1% (Elocon), Fluticasone propionate 0.05%; Very potent — Clobetasol propionate 0.05% (Dermovate), Diflucortolone valerate 0.3%. Knowing the potency classification is essential for appropriate prescribing — potent steroids are used on the body/limbs; mild-moderate on face/flexures/genitalia (except LS where Clobetasol is indicated). The FTU system and treatment duration should be tailored to the potency prescribed.

Reference: BAD Topical Corticosteroid Guidelines; BNF